I bought a hole saw of φ64. Sharpness was sometimes called the first time, and it finished without problems. In the opportunity to use for a while, time will be available but we will continue to record changes in sharpness.

Drilling machines such as electric construction pull boxes and boards on site Various

From Japan

On 2017-09-07 06:48:20

I used a variety of maker items, but this is the best.
Sharpness and lifespan are satisfied. In addition,
For the stainless steel material, slow the rotation of the drill,
If you use it will not be changed to a dedicated holso.
21, 27, 34, are large.